Medically reviewed by Steffini Stalos, DO A vitamin B12 blood test is a reliable method to determine if your levels are ...

Feeling unusually tired, foggy, or irritable despite a “normal” Vitamin B12 report can be frustrating, and doctors say it is far more common than most people realise. In a video shared on Instagram by ...

Vitamin B12 is essential for keeping the brain, nerves and blood healthy. But new research suggests that some older adults may not have enough usable vitamin B12 for their brains, even when standard ...

Normal" levels of vitamin B12 may not be enough to ward off dementia, according to researchers at University of California ...

LONDON, May 22, 2025 /PRNewswire/ -- Recent research has highlighted the significant role of vitamin B12 in maintaining neurological health. A collaborative study by the UK's Quadram Institute and the ...

Study challenges accepted vitamin B12 levels, revealing hidden neurological risks even within 'normal' range. Study: Vitamin B12 Levels Association with Functional and Structural Biomarkers of Central ...

Vitamin B12 is needed in microscopic amounts, but a shortage can have major effects on health and energy. The vitamin was first linked to a lifesaving liver treatment for pernicious anemia nearly 100 ...

A UCSF study finds lower but still ‘normal’ B12 levels linked to slower cognitive processing and brain damage in older adults. Older adults with vitamin B12 levels currently considered normal may ...

Why do some people respond better to oral vitamin B12 supplements? A study found that absorption, dose, starting B12 levels and regular use may help explain the difference.

Children need vitamins including B12 to help their brains and bodies develop and grow. Not getting enough vitamin B12, which is also called cobalamin, can make children feel weak and tired and slow ...